Added a test for switching graphs (when no kinect available)

Makes fixing QTRD-2348 easier

Change-Id: I5e5cd361336bbe3d9b2b4b1477b694f15ae42725
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

1 files changed, 319 insertions, 0 deletions

diff --git a/tests/multigraphs/data.cpp b/tests/multigraphs/data.cpp
new file mode 100644
index 00000000..31bc5391
--- /dev/null
+++ b/tests/multigraphs/data.cpp
@@ -0,0 +1,319 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the QtDataVisualization module.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+**
+****************************************************************************/
+
+#define NOMINMAX
+
+#include "data.h"
+#include <QtDataVisualization/Q3DValueAxis>
+#include <QtDataVisualization/Q3DCamera>
+#include <QScrollBar>
+#include <QSize>
+#include <QImage>
+
+QT_DATAVISUALIZATION_USE_NAMESPACE
+
+Data::Data(Q3DSurface *surface, Q3DScatter *scatter, Q3DBars *bars,
+           QTextEdit *statusArea, QWidget *widget) :
+    m_surface(surface),
+    m_scatter(scatter),
+    m_bars(bars),
+    m_statusArea(statusArea),
+    m_widget(widget),
+    m_resize(true),
+    m_resolution(QSize(300, 300)),
+    m_resolutionLevel(0),
+    m_mode(Surface),
+    m_started(false)
+{
+    // Initialize surface
+    m_surface->setTheme(QDataVis::ThemeIsabelle);
+    QLinearGradient gradient;
+    gradient.setColorAt(0.0, Qt::black);
+    gradient.setColorAt(0.33, Qt::blue);
+    gradient.setColorAt(0.67, Qt::red);
+    gradient.setColorAt(1.0, Qt::yellow);
+    m_surface->setSelectionMode(QDataVis::SelectionNone);
+    m_surface->setGridVisible(false);
+    m_surface->setGradient(gradient);
+    m_surface->setSurfaceGridEnabled(false);
+    m_surface->setBackgroundVisible(false);
+    m_surface->setSmoothSurfaceEnabled(false);
+    m_surface->setActiveDataProxy(new QHeightMapSurfaceDataProxy());
+    m_surface->scene()->activeCamera()->setCameraPosition(0.0, 90.0, 150);
+
+    // Initialize scatter
+    m_scatter->setTheme(QDataVis::ThemeStoneMoss);
+    m_scatter->setSelectionMode(QDataVis::SelectionNone);
+    m_scatter->setGridVisible(false);
+    m_scatter->setObjectType(QDataVis::MeshStylePoints);
+    m_scatter->setShadowQuality(QDataVis::ShadowQualitySoftLow);
+    m_scatter->scene()->activeCamera()->setCameraPosition(0.0, 85.0, 150);
+
+    // Initialize bars
+    m_bars->setTheme(QDataVis::ThemeQt);
+    m_bars->setSelectionMode(QDataVis::SelectionItemAndRow | QDataVis::SelectionSlice);
+    m_bars->setGridVisible(false);
+    m_bars->setBarType(QDataVis::MeshStyleBars, false);
+    m_bars->setShadowQuality(QDataVis::ShadowQualityLow);
+    m_bars->setBarSpacing(QSizeF(0.0, 0.0));
+    m_bars->scene()->activeCamera()->setCameraPosition(0.0, 75.0, 150);
+
+    // Hide scroll bar
+    m_statusArea->verticalScrollBar()->setVisible(false);
+}
+
+Data::~Data()
+{   // HACK: The current context needs to be destroyed last
+    // TODO: Fix properly in datavis code somehow
+    if (m_mode == Surface) {
+        delete m_scatter;
+        delete m_bars;
+        delete m_surface;
+    } else if (m_mode == Bars) {
+        delete m_scatter;
+        delete m_surface;
+        delete m_bars;
+    } else {
+        delete m_bars;
+        delete m_surface;
+        delete m_scatter;
+    }
+    delete m_widget;
+}
+
+void Data::updateData()
+{
+    if (!m_started) {
+        m_statusArea->append(QStringLiteral("<i>We are stopped. The changes will take effect once started.</i>"));
+        return;
+    }
+    QImage depthMap = QImage(":/australia.png");
+    if (m_resize) // Resize for better performance
+        depthMap = depthMap.scaled(m_resolution);
+    if (m_mode != Surface)
+        setData(depthMap);
+    else
+        static_cast<QHeightMapSurfaceDataProxy *>(m_surface->activeDataProxy())->setHeightMap(
+                depthMap);
+}
+
+void Data::clearData()
+{
+    m_bars->activeDataProxy()->resetArray(0);
+    m_scatter->activeDataProxy()->resetArray(0);
+    m_surface->activeDataProxy()->resetArray(0);
+}
+
+void Data::setResolution(int selection)
+{
+    m_resolutionLevel = selection;
+    switch (selection) {
+    case 0: {
+        m_resize = true;
+        m_resolution = QSize(300, 300);
+        break;
+    }
+    case 1: {
+        m_resize = true;
+        m_resolution = QSize(600, 600);
+        break;
+    }
+    case 2: {
+        m_resize = true;
+        m_resolution = QSize(800, 800);
+        break;
+    }
+    case 3: {
+        m_resize = false;
+        m_resolution = QSize(1020, 1020); // image size
+        break;
+    }
+    };
+    if (m_mode == Scatter) {
+        m_resize = true;
+        m_resolution /= 3;
+        m_scatterDataArray = new QScatterDataArray;
+        m_scatterDataArray->resize(m_resolution.width() * m_resolution.height());
+    } else if (m_mode == Bars) {
+        m_resize = true;
+        m_resolution /= 6;
+        m_barDataArray = new QBarDataArray;
+        m_barDataArray->reserve(m_resolution.height());
+        for (int i = 0; i < m_resolution.height(); i++) {
+            QBarDataRow *newProxyRow = new QBarDataRow(m_resolution.width());
+            m_barDataArray->append(newProxyRow);
+        }
+    }
+
+    m_statusArea->append(QString(QStringLiteral("<b>Resolution:</b> %1 x %2")).arg(
+                             m_resolution.width()).arg(m_resolution.height()));
+
+    updateData();
+}
+
+void Data::scrollDown()
+{
+    QScrollBar *scrollbar = m_statusArea->verticalScrollBar();
+    scrollbar->setValue(scrollbar->maximum());
+}
+
+void Data::useGradientOne()
+{
+    m_surface->setTheme(QDataVis::ThemeIsabelle);
+    QLinearGradient gradient;
+    gradient.setColorAt(0.0, Qt::black);
+    gradient.setColorAt(0.33, Qt::blue);
+    gradient.setColorAt(0.67, Qt::red);
+    gradient.setColorAt(1.0, Qt::yellow);
+    m_surface->setGradient(gradient);
+    m_statusArea->append(QStringLiteral("<b>Colors:</b> Thermal image imitation"));
+}
+
+void Data::useGradientTwo()
+{
+    m_surface->setTheme(QDataVis::ThemeQt);
+    QLinearGradient gradient;
+    gradient.setColorAt(0.0, Qt::white);
+    gradient.setColorAt(0.8, Qt::red);
+    gradient.setColorAt(1.0, Qt::green);
+    m_surface->setGradient(gradient);
+    m_statusArea->append(QStringLiteral("<b>Colors:</b> Highlight foreground"));
+}
+
+void Data::setData(const QImage &image)
+{
+    QImage heightImage = image;
+
+    uchar *bits = heightImage.bits();
+
+    int imageHeight = heightImage.height();
+    int imageWidth = heightImage.width();
+    int bitCount = imageWidth * 4 * (imageHeight - 1);
+    int widthBits = imageWidth * 4;
+
+    if (m_mode == Scatter) {
+        QScatterDataItem *ptrToDataArray = &m_scatterDataArray->first();
+
+        int limitsX = imageWidth / 2;
+        int limitsZ = imageHeight / 2;
+        qreal height = 0;
+        int count = 0;
+
+        for (int i = -limitsZ; i < limitsZ; i++, bitCount -= widthBits) {
+            for (int j = -limitsX; j < limitsX; j++) {
+                height = qreal(bits[bitCount + ((j + limitsX) * 4)]) - 128.0;
+                if (height > -128) {
+                    ptrToDataArray->setPosition(QVector3D(qreal(j), height, qreal(i)));
+                    ptrToDataArray++;
+                    count++;
+                }
+            }
+        }
+
+        QScatterDataArray *dataArray = new QScatterDataArray(m_scatterDataArray->mid(0, count));
+        m_scatter->activeDataProxy()->resetArray(dataArray);
+    } else {
+        QBarDataArray *dataArray = m_barDataArray;
+        for (int i = 0; i < imageHeight; i++, bitCount -= widthBits) {
+            QBarDataRow &newRow = *dataArray->at(i);
+            for (int j = 0; j < imageWidth; j++)
+                newRow[j] = qreal(bits[bitCount + (j * 4)]);
+        }
+
+        m_bars->activeDataProxy()->resetArray(dataArray);
+    }
+}
+
+void Data::changeMode(int mode)
+{
+    m_mode = VisualizationMode(mode);
+    switch (m_mode) {
+    case Surface: {
+        m_statusArea->append(QStringLiteral("<b>Visualization Type:</b> Surface"));
+        break;
+    }
+    case Scatter: {
+        m_statusArea->append(QStringLiteral("<b>Visualization Type:</b> Scatter"));
+        break;
+    }
+    default: {
+        m_statusArea->append(QStringLiteral("<b>Visualization Type:</b> Bars"));
+        break;
+    }
+    }
+    // Reset resolution after mode change
+    setResolution(m_resolutionLevel);
+}
+
+void Data::start()
+{
+    m_started = true;
+    updateData();
+    m_statusArea->append(QStringLiteral("<b>Started<\b>"));
+}
+
+void Data::stop()
+{
+    m_started = false;
+    clearData();
+    m_statusArea->append(QStringLiteral("<b>Stopped<\b>"));
+}
+
+ContainerChanger::ContainerChanger(QWidget *surface, QWidget *scatter, QWidget *bars,
+                                   QWidget *buttonOne, QWidget *buttonTwo)
+    : m_surface(surface),
+      m_scatter(scatter),
+      m_bars(bars),
+      m_button1(buttonOne),
+      m_button2(buttonTwo)
+{
+}
+
+ContainerChanger::~ContainerChanger()
+{
+}
+
+void ContainerChanger::changeContainer(int container)
+{
+    switch (container) {
+    case 0: {
+        m_scatter->setVisible(false);
+        m_bars->setVisible(false);
+        m_surface->setVisible(true);
+        m_button1->setEnabled(true);
+        m_button2->setEnabled(true);
+        break;
+    }
+    case 1: {
+        m_surface->setVisible(false);
+        m_bars->setVisible(false);
+        m_scatter->setVisible(true);
+        m_button1->setEnabled(false);
+        m_button2->setEnabled(false);
+        break;
+    }
+    case 2: {
+        m_surface->setVisible(false);
+        m_scatter->setVisible(false);
+        m_bars->setVisible(true);
+        m_button1->setEnabled(false);
+        m_button2->setEnabled(false);
+        break;
+    }
+    }
+}